• Journal of Yeungnam Medical Science
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• 제6권2호
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• pp.91-101
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• 1989

외상성 경동맥 해면동루의 치료를 위해 8명의 환자에서 Goldvalve형 풍선을 이용한 치료를 시도 하였다. 전 례에서 동맥을 통한 누공 폐색을 시도하여 성공적으로 누공을 폐색하였다. 5례에서는 내경동맥을 보존할 수 있었으나 다른 경우는 내경동맥과 누공을 함께, 내경동맥의 해면동부 전체, 그리고 일관성 흑내장 방지위해 내경동맥과 누공 도한 내경동맥 기시부를 함께 폐색시킨 예가 각각 1례씩 있었다. 누공만을 폐색시킨 1례에서 증상이 재발하여 수술로 치료하였다. 주요 합병증으로는 3례의 두통과 1례의 허혈성 편마비가 있었으나 자연소실 되었다. 이러한 결과를 볼 때 CCF는 분리풍선을 이용하여 누공만을 폐색시켜 치료하는 것이 유리할 것으로 생각된다.

• Journal of Korean Neurosurgical Society
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• 제65권4호
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• pp.514-522
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• 2022

Objective : A distal navigation of a large bore aspiration catheter during mechanical thrombectomy (MT) is important. However, delivering a large bore aspiration catheter is difficult to a tortuous or atherosclerotic artery. We report the experience of anchoring with balloon guide catheter (BGC) and stent retriever to facilitate the passage of an aspiration catheter in MT. Methods : When navigating an aspiration catheter failed with a conventional co-axial microcatheter delivery, an anchoring technique was used. Two types of anchoring technique were applied to facilitate distal navigation of a large bore aspiration catheter during MT. First, a passage of aspiration catheter was attempted with a proximal BGC anchoring technique. If this technique also failed, another anchoring technique with distal stent retriever was tried. Consecutive patients who underwent MT with an anchoring technique were identified. Details of procedure, radiologic outcomes, and safety variables were evaluated. Results : A total of 67 patients underwent MT with an anchoring technique. Initial trial of aspiration catheter passage with proximal BGC anchoring technique was successful for 35 patients (52.2%) and the second trial with distal stent retriever anchoring was successful for 32 patients (47.8%). Overall, navigation of a large bore aspiration catheter was successful for all patients (100%) without any procedure related complications. Conclusion : Our study showed the usefulness of anchoring technique with proximal BGC and distal stent retriever during MT, especially in those with an unfavorable anatomical structure. This technique could be an alternative option for delivering an of aspiration catheter to a distal location.

• Journal of Korean Neurosurgical Society
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• 제63권1호
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• pp.14-25
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• 2020

Proximal flow control achieved with a balloon guide catheter (BGC) during endovascular treatment of acute ischemic stroke is reviewed in this article. In clinical practice, BGCs offer a multi-faceted approach for clot retrieval by creating proximal flow arrest, reducing embolic burden, and shortening procedure time. Evaluation of frontline thrombectomy procedures with BGCs revealed advantages of combined use over the conventional guide catheter (CGC), notably in the significant reduction of distal emboli to both the affected and previously unaffected territories. Recently, new measures of early and complete reperfusion at first thrombectomy pass have been identified as independent predictors of improved outcomes, which were consistently demonstrated with use of BGC as a safe and effective option to minimize number of passes during intervention. Prior randomized controlled trials reported the positive correlation between BGC-treated patients and a lower risk of mortality as well as shortened procedure time. While BGC use is more common in stent retriever-mediated mechanical thrombectomy, preliminary data has shown the potential benefit of device application during contact aspiration thrombectomy to achieve successful recanalization. However, the question of which major endovascular strategy reigns superior as a frontline remains to be answered. Along with clinical case assessments, BGC performance during in-vitro simulation was analyzed to further understand mechanisms for optimization of thrombectomy technique.

• Journal of Korean Neurosurgical Society
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• 제30권sup1호
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• pp.165-169
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• 2001

Apatient, 51 years old woman, had suffered form headache and decrease of visual acuity. She had $3{\times}3cm$ sized giant aneurysm originated in cavernous and clinoid portion of left ICA(C4,C5) in the cerebral angiography. Before craniotomy, left CCA was exposed and 6F double lumen catheter was inserted in left ICA through the sheath. Pre-operative angiography was done. balloon catheter was positioned at the petrous portion of ICA. Eyebrow approach was done and giant aneurysm was exposed. The proximal blood flow was controlled with balloon dilatation and suction and decompression was tried, then multiple clips were applied. The loss of distal blood flow under intra-operative angiography was notified after clipping. The position of clips were repositioned to preserve blood flow & the rich flow was confirmed at distal part of clipping. In the post-operative cerebral angiography, the same finding was shown.

• Journal of Korean Neurosurgical Society
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• 제57권1호
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• pp.12-18
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• 2015

Objective : Covered stent has been recently reported as an effective alternative treatment for direct carotid cavernous fistulas (DCCFs). The purpose of this study is to describe our experiences with the treatment of DCCF with covered stents and to evaluate whether a covered stent has a potential to be used as the first choice in selected cases. Methods : From February 2009 through July 2013, 10 patients underwent covered stent placement for a DCCF occlusion. Clinical and angiographic data were retrospectively reviewed. Results : Covered stent placement was performed for five patients primarily as the first choice and in the other five as an alternative option. Access and deployment of a covered stent was successful in all patients (100%) and total occlusion of the fistula was achieved in nine (90%). Complete occlusion immediately after the procedure was obtained in five patients (50%). Endoleak persisted in five patients and the fistulae were found to be completely occluded by one month control angiography in four. The other patient underwent additional coil embolization by a transvenous approach. Balloon inflation-related arterial dissection during the procedure was noted in two cases; healing was noted at follow-up angiography. One patient suffered an asymptomatic internal carotid artery occlusion noted seven months post-treatment. Conclusion : Although endoleak is currently a common roadblock, our experience demonstrates that a covered stent has the potential to be used as the first choice in DCCF; this potential is likely to increase as experience with this device accumulates and the materials continue to improve.

• Tuberculosis and Respiratory Diseases
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• 제43권2호
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• pp.267-273
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• 1996

저자들은 최근 다발성 폐동맥 폐쇄를 동반한 Takayasu 동맥염 1예을 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• 대한핵의학회지
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• 제29권1호
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• pp.22-30
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• 1995

저자들은 두개 기저나 경부종괴 또는 내경동맥의 동맥류등으로 인하여 내경동맥의 결찰이 필요한 환자에 있어서 객관적인 관점에서 수술전에 영구적인 내경동맥의 결찰의 안전성에 관하여 $^{99m}Tc$-HMPAO 뇌 SPECT를 이용하여 보고자 하였다. 내경동맥의 결찰이 고려되는 24명의 두개기저나 경부종괴 환자를 대상으로 하였다. 저자들은 풍선 시험 결찰술 시행전과 시행중의 양측 중대뇌동맥 영역의 섭취정도를 $^{99m}Tc$-HMPAO 뇌 SPECT를 이용하여 비교해보았고 이러한 결과를 신경학적 검사, 경동맥 스텀프압 고리고 뇌전도검사등과 비교해 보았다. 대상환자중 19명의 환자에서는 풍선 시험 결찰술 동안 신경학적 이상등의 문제들을 경험하지 않았고 이들에 있어 중대뇌동맥영역의 섭취정도는 결찰술 시행전에 비교하여 95-101%에 해당하였다. 나머지 5명의 환자에서는 일과성 반신마비와 의식소실등의 심한 신경학적 증상을 보였고 이들에 있어 중대뇌동맥 영역의 섭취정도는 시행전에 비하여 77-85%에 해당하였으며 다른 검사결과와도 잘 부합되었다. 결론적으로 풍선시험결찰술 시행전과 시행중의 $^{99m}Tc$-HMPAO 뇌 SPECT는 중대뇌동맥영역의 섭취가 시행전에 비교하여 85%이하인 경우 영구적인 신경학적 결손을 예측할 수 있는 간단하고 객관적인 방법이 될 수 있을 것으로 생각한다.

• Journal of Yeungnam Medical Science
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• 제33권2호
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• pp.134-137
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• 2016

Bee sting causes mild symptoms such as urticaria and localized pain, and severe symptoms including anaphylaxis, cardiovascular collapse, and death. We reported on a patient with arterial thrombotic occlusion and severe ischemia in the lower limb after multiple bee stings. The patient was stung 5 times and complained of pallor, pain, and coldness in the left toe, and did not have dorsalis pedis pulsation. Computed tomography angiography showed multiple thrombotic occlusion of the anterior and posterial tibial artery below the knee. Local thrombolytic therapy using urokinase was administered and the occluded arteries were successfully recanalized.

• 대한두경부종양학회지
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• 제17권1호
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• pp.13-18
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• 2001

Objectives: We studied what is the role of elective carotid artery resection in the management of advanced cervical metastatic cancer. Materials and Methods: 5 patients with elective carotid artery resection in advanced metastatic cervical cancer were reviewed retrospectively. The patients underwent complete neuroradiologic evaluation, including CT/MRI. angiography, duplex doppler, balloon occlusion test with EEG, and brain SPECT for determination of compatible collateral circulation after carotid artery resection. Results: Perioperative complication were appeared in 2 patients those were middle cerebral arterial infarction and mediastinal bleeding. Postoperative mortality rate was 20%. 4 patients recurred within 1 year. Conclusion: Preoperative collateral study rarely provide whether resection carotid artery or not. Elective carotid artery resection cannot provide locoregional control of tumor and don't promote survival.

• Journal of Korean Neurosurgical Society
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• 제58권5호
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• pp.419-425
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• 2015

Objective : Acute vertebrobasilar artery occlusion (AVBAO) is a devastating disease with a high mortality rate. One of the most important factors affecting favorable clinical outcome is early recanalization. Mechanical thrombectomy is an emerging treatment strategy for achieving a high recanalization rates. However, thrombectomy alone can be insufficient to complete recanalization, especially for acute stroke involving large artery atheromatous disease. The purpose of this study is to investigate the safety and efficacy of mechanical thrombectomy in AVBAO. Methods : Fourteen consecutive patients with AVBAO were treated with mechanical thrombectomy. Additional multimodal treatments were intra-arterial (IA) thrombolysis, balloon angioplasty, or permanent stent placement. Recanalization by thrombectomy alone and multimodal treatments were assessed by the Thrombolysis in Cerebral Infarction (TICI) score. Clinical outcome was determined using the National Institutes of Health Stroke Scale (NIHSS) at 7 days and the modified Rankin Scale (mRS) at 3 months. Results : Thrombectomy alone and multimodal treatments were performed in 10 patients (71.4%) and 4 patients (28.6%), respectively. Successful recanalization (TICI 2b-3) was achieved in 11 (78.6%). Among these 11 patients, 3 (27.3%) underwent multimodal treatment due to underlying atherosclerotic stenosis. Ten (71.4%) of the 14 showed NIHSS score improvement of >10. Overall mortality was 3 (21.4%) of 14. Conclusion : We suggest that mechanical thrombectomy is safe and effective for improving recanalization rates in AVBAO, with low complication rates. Also, in carefully selected patients after the failure of recanalization by thrombectomy alone, additional multimodal treatment such as IA thrombolysis, balloons, or stents can be needed to achieve successful recanalization.